{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "cell line", "cell type", "protein"], "input": "With HBxAg -specific synthetic polypeptides , several T-cell epitopes were identified."}
{"RNA": [], "cell line": [], "cell type": [], "protein": ["HBxAg", "T-cell epitopes"]}